ImageRegion Property

Summary

RasterImage object that is updated with a shallow copy of the image that also has a region that contains the removed lines.

Syntax

Objective-C

C++/CLI

Java

Python

public RasterImage ImageRegion { get; }

@property (nonatomic, strong, readonly, nullable) LTRasterImage *imageRegion;

public RasterImage getImageRegion();

public: 
property RasterImage^ ImageRegion { 
   RasterImage^ get(); 
}

ImageRegion # get  (LineRemoveCommand)

Property Value

The RasterImage object, updated with a shallow copy of the image that has a region that contains the removed lines.

Remarks

If LineRemoveCommandFlags.SingleRegion| LineRemoveCommandFlags.LeadRegion has been set in Flags, then when LineRemoveCommand returns, this property is updated with a shallow copy of the image that also has a region that contains the removed lines. So set Flags to (LineRemoveCommandFlags.SingleRegion| LineRemoveCommandFlags.LeadRegion). It is the programmer's responsibility to dispose of the region when it is no longer needed.

Example

Run the LineRemoveCommand on an image.

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void ImageRegionPropertyExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")); 
 
   // Prepare the command 
   LineRemoveCommand command = new LineRemoveCommand(); 
   command.LineRemove += new EventHandler<LineRemoveCommandEventArgs>(LineRemoveEvent_S3); 
   command.Type = LineRemoveCommandType.Horizontal; 
   command.Flags = LineRemoveCommandFlags.UseVariance | LineRemoveCommandFlags.SingleRegion; 
   command.GapLength = 2; 
   command.MaximumLineWidth = 5; 
   command.MinimumLineLength = 200; 
   command.MaximumWallPercent = 10; 
   command.Wall = 7; 
   command.Variance = 2; 
   command.Run(image); 
 
} 
 
private void LineRemoveEvent_S3(object sender, LineRemoveCommandEventArgs e) 
{ 
   MessageBox.Show("Row Col " + "( " + e.StartRow.ToString() + ", " + e.StartColumn + " )" + 
      "\n Length " + e.Length.ToString()); 
   e.Status = RemoveStatus.Remove; 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.core.*; 
 
 
public void imageRegionPropertyExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.setThrowExceptionsOnInvalidImages(true); 
 
   RasterImage image = codecs.load(combine(LEAD_VARS_IMAGES_DIR, "Clean.tif")); 
 
   // Prepare the command 
   LineRemoveCommand command = new LineRemoveCommand(); 
   command.addLineRemoveCommandListener(lineRemoveEvent_S3); 
   command.setType(LineRemoveCommandType.HORIZONTAL); 
   command 
         .setFlags(LineRemoveCommandFlags.USE_VARIANCE.getValue() | LineRemoveCommandFlags.SINGLE_REGION.getValue()); 
   command.setGapLength(2); 
   command.setMaximumLineWidth(5); 
   command.setMinimumLineLength(200); 
   command.setMaximumWallPercent(10); 
   command.setWall(7); 
   command.setVariance(2); 
   command.run(image); 
 
   codecs.save(image, combine(LEAD_VARS_IMAGES_DIR, "Result.jpg"), RasterImageFormat.JPEG, 24); 
 
   assertTrue(new File(combine(LEAD_VARS_IMAGES_DIR, "Result.jpg")).exists()); 
   System.out.println("Command run and image saved to " + combine(LEAD_VARS_IMAGES_DIR, "Result.jpg")); 
} 
 
LineRemoveCommandListener lineRemoveEvent_S3 = new LineRemoveCommandListener() { 
   @Override 
   public void onLineRemoveEvent(LineRemoveCommandEvent e) { 
      System.out.println("Row Col " + "( " + e.getStartRow() + ", " + e.getStartColumn() + " )" + 
            "\n Length " + e.getLength()); 
      e.setStatus(RemoveStatus.REMOVE); 
 
   } 
 
};

Requirements

Target Platforms

Reference

LineRemoveCommand Class

LineRemoveCommand Members

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Core Assembly

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Leadtools.ImageProcessing.Core Namespace

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